1 files changed, 108 insertions, 0 deletions
diff --git a/include/VBox/bioslogo.h b/include/VBox/bioslogo.h
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+++ b/include/VBox/bioslogo.h
@@ -0,0 +1,108 @@
+/* $Id: bioslogo.h $ */
+/** @file
+ * BiosLogo - The Private BIOS Logo Interface. (DEV)
+ */
+
+/*
+ * Copyright (C) 2006-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+#ifndef VBOX_INCLUDED_bioslogo_h
+#define VBOX_INCLUDED_bioslogo_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#ifndef VBOX_PC_BIOS
+# include <iprt/types.h>
+# include <iprt/assert.h>
+#endif
+
+/** @defgroup grp_bios_logo     The Private BIOS Logo Interface.
+ * @ingroup grp_devdrv
+ * @internal
+ *
+ * @remark All this is currently duplicated in logo.c.
+ *
+ * @{
+ */
+
+/** The extra port which is used to show the BIOS logo. */
+#define LOGO_IO_PORT         0x3b8
+
+/** The BIOS logo fade in/fade out steps. */
+#define LOGO_SHOW_STEPS      16
+
+/** @name The BIOS logo commands.
+ * @{
+ */
+#define LOGO_CMD_NOP         0
+#define LOGO_CMD_SET_OFFSET  0x100
+#define LOGO_CMD_SHOW_BMP    0x200
+/** @} */
+
+/**
+ * PC Bios logo data structure.
+ */
+typedef struct LOGOHDR
+{
+    /** Signature (LOGO_HDR_MAGIC/0x66BB). */
+    uint16_t        u16Signature;
+    /** Logo time (msec). */
+    uint16_t        u16LogoMillies;
+    /** Fade in - boolean. */
+    uint8_t         fu8FadeIn;
+    /** Fade out - boolean. */
+    uint8_t         fu8FadeOut;
+    /** Show setup - boolean. */
+    uint8_t         fu8ShowBootMenu;
+    /** Reserved / padding. */
+    uint8_t         u8Reserved;
+    /** Logo file size. */
+    uint32_t        cbLogo;
+} LOGOHDR;
+#ifndef VBOX_PC_BIOS
+AssertCompileSize(LOGOHDR, 12);
+#endif
+/** Pointer to a PC BIOS logo header. */
+typedef LOGOHDR *PLOGOHDR;
+/** Pointer to a const PC BIOS logo header. */
+typedef LOGOHDR const *PCLOGOHDR;
+
+/** The value of the LOGOHDR::u16Signature field. */
+#define LOGO_HDR_MAGIC      0x66BB
+
+/** The value which will switch you the default logo. */
+#define LOGO_DEFAULT_LOGO   0xFFFF
+
+/** @} */
+
+#endif /* !VBOX_INCLUDED_bioslogo_h */
+